ppt

Research and new progress of gamma-ray bursts (Dai Zigao) ppt

  • 2013-09-22
  • 5MB
  • Points it Requires : 2

Research and new progress of gamma-ray bursts (Dai Zi high energy comparison Material composition: molecule → atom → electron, nucleus → nucleon (proton, neutron) → quark Chemical energy: 1 eV/atom, efficiency 10-9 20 tons of gasoline = 41019 erg = 500 tons of TNT Nuclear energy: several MeV/nucleon, efficiency several10-3 1 kg 235U = 21021 erg = 20,000 tons of TNT

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